AlterMe’s Smart Zone is our personalized way of defining your optimal training intensity. It’s built on the Karvonen formula, a clinically validated method that goes beyond simple age-based calculations.
Instead of using a flat percentage of your maximum heart rate, AlterMe factors in your resting heart rate—a key indicator of your individual fitness level and recovery state. This allows your Smart Zone to dynamically reflect your body’s real-time physiology, not just a generic range.
Your Smart Zone represents the effort level where you’re training efficiently—building endurance, improving cardiovascular health, and supporting recovery.